I wouldn't expect to see anything for a month or two. Builds this early in the development cycle are rarely stable.
Windows Insider program never promised a stable build. I have been following the program for the last 6 months and I have had terrible experiences which I shouldn't complain since there is no promise from MS side. UR1 cannot be worse than those builds. MS must give us something new to play. We have been playing with RTM for the last 2 weeks.